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Re: [Bug-gnubg] Mingw32 cross-compilation

From: Vyacheslav V. Yurkov
Subject: Re: [Bug-gnubg] Mingw32 cross-compilation
Date: Wed, 13 Jan 2010 11:20:37 +0700
User-agent: Thunderbird (X11/20090820)

Christian Anthon wrote:
On Tue, Jan 12, 2010 at 9:28 AM, Vyacheslav V. Yurkov
<address@hidden> wrote:
Christian Anthon wrote:

external_l.o:external_l.c:(.text+0x258): undefined reference to `_extlval'
external_l.o:external_l.c:(.text+0x33f): undefined reference to `_extlval'
external_l.o:external_l.c:(.text+0x368): undefined reference to `_extlval'
external_l.o:external_l.c:(.text+0x3a9): undefined reference to `_extlval'
external_l.o:external_l.c:(.text+0x186b): undefined reference to `_extparse'

Don't know why this would happen, but these are defined in
external_y.c. You may try to remove HAVE_SOCKETS config.h and then
remove the references to external_l/external_y in the makefile.am. But
remember that config.h gets clobbered next time you run configure.
Edit configure.in to get rid of HAVE_SOCKETS forever.
I looked over the compilation command again and noticed that there is no file external_y.o. So this leads to my original error.
gnubg.o:gnubg.c:(.text+0x7b6d): undefined reference to `_CreateMutex'

You can probably just comment out the line in gnubg.c where it says CreateMute
That helped, thanks.

Finally I sorted out the problem. To compile external_y.y I moved definitions of cmdtype and extcmd from external.h to external_y.y.
typedef enum _cmdtype  {
} cmdtype;

typedef struct _extcmd {
 cmdtype ct;

 /* evalcontext */
 int nPlies;
 float rNoise;
 int fDeterministic;
 int fCubeful;
 int nReduced;
 int fUsePrune;

 /* fibs board */
 char *szFIBSBoard;
} extcmd;
For some reason they seemed to be undefined for compiler from external.h.

One more note. Files board3d/drawboard3d.c and board3d/misc3d.c include file wglBuffer.h.
The include is done inside #ifdef WIN32 condition directives as
#include "wglbuffer.h"
Since I make cross-compilation in Linux environment file names are case-sensitive. So it is preferable to have "wglBuffer.h" instead of "wglbuffer.h".

Vyacheslav V. Yurkov <address@hidden>     Senior Software Engineer
Norilsk                                         Tel: +79069001870

Software Development Department
Joint Stock Company "Channel-7", ISP

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